Hi,im a 22 year old male and i've been dealing with this constant shortness of breath for over 5 years now , and doctors have no idea what's wrong with me. The only thing they say is that its anxiety, but i truly dont believe it. It just started spontaneously out of nowhere. I tried to take a deep breath one day and couldn't. After that for about 2 years i was constantly taking deep breaths and not able to get a satisfied breath. I was yawning and sighing all day. I had reached the point when i was staying home in my bed just hoping i would die so it would stop. After 2 years or so it went away. It then came back after i smoked a cigarette . Ever since then its been an ongoing struggle. I feel as if i have no control of my life, and im constantly thinking of my breathing. I feel hopeless and feel as if no one understands what im going through or that i have this disease hat doctors cant detect. My doctor has put me on xanax and it seemed to cut the edge off a lil but its still there. Its not *** bad and when i first got it but it still disrupts my life. I dont work i don't go to school and i don't have much of a social life .I've gone to cardiologist, ent's, gi's, pulmonary doctors. I've gone through xrays, PFT, EKG, stress tests, endoscopy . Only thing i have is Laryngopharyngeal Reflux LPR with sinsation of lump in throat and a very small irregular heart beat. i did have a deviated septum but got that fixed..My lung specialist says its just all in my head and that i have this because ive become aware of my breathing pattern. i've used advair, singular and breathing pumps with no results. when im sitting or laying down its seems to be fine but when i stand up or more it kicks in more. I'm losing hope on what's going on with me. Does anyone have this?If so can anyone recommend anything else i should look for? the only thing i really want to do is a MRI or CT scan but my insurrance wont cover it and the doctors ssy nothing will show. Has anyone heard of chronic hyperventilation syndrome? or phrenic nerve damage? if anyone can be of help please post a message?